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Food Chain - Ecosystem
In a food chain, the food energy is transformed from a given source through a series of species, each of which eats the one before itself in the chain. This repeated series of eating and being eaten is always initiated with green plants, which convert radiant energy into chemical energy which is stored in food. A very simple food chain is:
Sun → grass → goat → man
Each transfer a proportion of the food, energy is lost as heat. This limits the number of links or steps in a food chain, usually to four or five. In aquatic ecosystems, microscopic green plants called phytoplankton and algae play the same role as grasses in a pasture or trees in a forest.
Endocrine System The nervous system brings about integration and co-ordination of several activities of the animal. The afferent stimuli from several sense organs are brought
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Q. Scheme of Classification of phylum hemichordate? These are about 90 species of hemichordates. All are marine and live in the open sea or in muddy sediments. Hemichordata wer
Define Calcium requirements of infants? The calcium requirements of young infants are computed from the calcium content of breast milk and volume of breast milk intake. Up to 6
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Explain Pulmonary Atresia With Intact Ventricular Septum ? The direct communications between RV and PA is absent. The PDA is major source of blood flow to lungs From Aorta. The
E c h o c a r d i og r ap h y : It is an exceptionally useful technique for diagnosing cardiovascular diseases, particularly in small an
Effect of Temperature Certain plants such as the winter rye (Secale cereale) and the biennial strain of henbane (Hyoscyamus Niger) require exposure to low temperature conditio
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